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Changes in electronic structure of copper films in aqueous solutions
Uppsala Universitet. (Department of Physics)
Uppsala Universitet. (Fysik och Astronomi)
Uppsala Universitet.
Uppsala Universitet. (Materialkemi)
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2007 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 19, no 22, 226002/1-226002/13 p.Article in journal (Refereed) Published
Abstract [en]

The possibility of using x-ray absorption spectroscopy and resonant inelastic x-ray scattering to probe the Cu oxidn. state and changes in the electronic structure during interaction between copper and ground-water solns. was examd. Surface modifications induced by chem. reactions of oxidized 100 Å thick Cu films with Cl-, SO2-4 and HCO-3 ions in aq. solns. having various concns. were studied in-situ using liq. cells. Copper corrosion processes in ground water were monitored for ≀9 days. By comparing Cu 2p-3d, 4s transitions for a no. of ref. substances previously measured, changes in electronic structure of the Cu films were analyzed. The spectral shape at the Cu edge, chem. shift of the main line for Cu2+, and energy positions of the obsd. satellites served as a tool for monitoring the changes during the reaction. The pH and Cl- concn. in the solns. strongly affect the rate of the corrosion reaction. [on SciFinder(R)]

Place, publisher, year, edition, pages
2007. Vol. 19, no 22, 226002/1-226002/13 p.
Keyword [en]
electronic structure effect copper film corrosion aq soln
National Category
Natural Sciences
URN: urn:nbn:se:kth:diva-78464DOI: 10.1088/0953-8984/19/22/226002ISI: 000246568500013OAI: diva2:495702
CAPLUS AN 2007:1334768(Journal). QC 20120302Available from: 2012-02-09 Created: 2012-02-08 Last updated: 2012-03-02Bibliographically approved

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Soroka, Inna
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